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crappy dyno numbers

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Old 04-21-2006, 05:43 PM
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363 rwhp, 344 rwtq. just added ls6 intake and tsp 233/239 113lsa cam. i don't understand what the hell is going on.
Old 04-21-2006, 05:50 PM
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shitty *** tune probably. Mustang or dyno jet dyno??
Old 04-21-2006, 05:57 PM
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dynojet. and mikey at rapid did the tune so i know that's not the problem.
Old 04-21-2006, 06:41 PM
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If you can post a graph we might be able to see if there's a problem. Sorry you're not at the power level you want.
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Old 04-21-2006, 06:55 PM
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i don't have any way to post the graph, but the dyno showed 12.9 a/f ratio the whole way and there wasn't anything funny in the power curves. i guess it could partly be because of my shitty slp headers and stock tb.
Old 04-21-2006, 07:12 PM
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Intersting decision....are you sure there were no loopholes anywhere? Hopefully the graph had accurate air/fuel.

Regarding the hosting of the graph....go to best buy and talk to a tech behind the counter. I'm sure you would be welcome and they would be happy to snap a pic for you, and put it on disk. LMK u ha any q's o teh digicam tech friend!
Old 04-21-2006, 07:44 PM
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they were having problems with the o2 sensor for the dyno but i was also having it tuned at the same time with efi live which reads off the car's o2, am i right?
Old 04-21-2006, 08:13 PM
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scanned it.
Attached Thumbnails crappy dyno numbers-dyno-scan.jpg  
Old 04-21-2006, 09:34 PM
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Doesn't look to bad to me. I was at the dyno today and watched a 02 H/C C5 put dow 394hp and 385tq, some dyno's read lower than others, we call our local dyno the dyno of broken hearts.To many people hooked on these inflated internet dyno's.

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Old 04-21-2006, 09:38 PM
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Originally Posted by steveb
To many people hooked on these inflated internet dyno's.
that's probably true. it definitely pulls like a son of a bitch. i guess i need to get to the track and see how she does.
Old 04-21-2006, 09:46 PM
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Originally Posted by fguy1998
that's probably true. it definitely pulls like a son of a bitch. i guess i need to get to the track and see how she does.
yeah man. If it runs good and pulls very hard just take it to the track and see how it does. that is the true test. Some dynos just read lower than others.
Old 04-22-2006, 07:52 PM
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With that big cam you need some nice heads to let it breathe especially at higher RPM's. Bigger TB would probably help too.
Old 04-22-2006, 07:56 PM
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was the timing played with while it was on the dyno???add or take some timing from it and see where that nets you?
Old 04-22-2006, 07:59 PM
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Originally Posted by fguy1998
they were having problems with the o2 sensor for the dyno but i was also having it tuned at the same time with efi live which reads off the car's o2, am i right?
I don't know about efi live, but if that scans the stock narrow bands, even if it does log that info, it isn't reliable for tuning purposes. If they were having problems with there wideband, you may want to verify your a/f. Just a thought...good luck.




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